Phobos的所有埋点方法由原来的实例方法改成静态方法。

README.md

@@ -46,26 +46,33 @@ This singleton instance is often configured in your app delegate’s application
 }
 ```
 
-If you would like to specify a user, you can set the userId that is used with the -[setUserId:] class method.
+If you would like to specify a user, you can set the userId that is used with the -[setUserId:] Instance method.
 ```objc
 WMUser *user = [[WMLoginManager shareInstance] user];
 [client setUserId:user.userId];
 ```
+If you would like to use Phobos, you must set the currentCityId that is used with the -[setCurrentCityId:] Instance method.
+```objc
+WMCityObject *city = [[WMCacheService sharedInstance] fetchObjectAtDucmentPathWithkey:kCurrentCity];
+    if (city) {
+        [client setCurrentCityId:city.id];
+    }
+```
 
 ## Sending Messages
 Sending a basic message:
 ```objc
-[[Phobos sharedClient] track:@"event_id"];
+[Phobos track:@"event_id"];
 ```
 
 Sending a message with another attributes:
 ```objc
-[[Phobos sharedClient] track:@"event_id" attributes:@{}];
+[Phobos track:@"event_id" attributes:@{}];
 ```
 
 Sending a message with another attributes and send immediately:
 ```objc
-[[Phobos sharedClient] track:@"event_id" attributes:@{} sendNow:YES];
+[Phobos track:@"event_id" attributes:@{} sendNow:YES];
 ```
 
 

[翟国钧]

另外，因为埋点数据中需要用户的当前城市信息，所以在初始化Phobos的时候，必须通过setCurrentCityId方法来设置城市ID